--- /dev/null
+/* m88k-opcode.h -- Instruction information for the Motorola 88000
+ Contributed by Devon Bowen of Buffalo University
+ and Torbjorn Granlund of the Swedish Institute of Computer Science.
+ Copyright (C) 1989, 1990, 1991 Free Software Foundation, Inc.
+
+This file is part of GAS, the GNU Assembler.
+
+GAS is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GAS is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GAS; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#if !defined(__STDC__) && !defined(const)
+#define const
+#endif
+
+/*
+ Character codes for op_spec field below.
+ Reserved for direct matching: x , [ ]
+
+ d = GRF Destination register (21:5)
+ 1 = Source register 1 (16:5)
+ 2 = Source register 2 (0:5)
+ 3 = Both source registers (same value) (0:5 and 16:5)
+ I = IMM16 (0:16)
+ b = bit field spec. (0:10)
+ p = 16 bit pc displ. (0:16)
+ P = 26 bit pc displ. (0:26)
+ B = bb0/bb1 condition (21:5)
+ M = bcnd condition (21:5)
+ f = fcr (5:6)
+ c = cr (5:6)
+ V = VEC9 (0:9)
+ ? = Give warning for this insn/operand combination
+ */
+
+/* instruction descriptor structure */
+
+struct m88k_opcode
+{
+ unsigned int opcode;
+ char *name;
+ char *op_spec;
+};
+
+/* and introducing... the Motorola 88100 instruction sets... */
+
+/* These macros may seem silly, but they are in preparation
+ for future versions of the 88000 family. */
+
+#define _MC88100(OPCODE,MNEM,OP_SPEC) {OPCODE,MNEM,OP_SPEC},
+#define _MC88xxx(OPCODE,MNEM,OP_SPEC) {OPCODE,MNEM,OP_SPEC},
+
+/* Equal mnemonics must be adjacent.
+ More specific operand specification must go before more general.
+ For example, "d,1,2" must go before "d,1,I" as a register for s2
+ would otherwise be considered a variable name. */
+
+static struct m88k_opcode m88k_opcodes[] =
+{
+ /* Opcode Mnemonic Opspec */
+
+ _MC88xxx(0xf4007000, "add", "d,1,2")
+ _MC88xxx(0x70000000, "add", "d,1,I")
+ _MC88xxx(0xf4007200, "add.ci", "d,1,2")
+ _MC88xxx(0xf4007300, "add.cio", "d,1,2")
+ _MC88xxx(0xf4007100, "add.co", "d,1,2")
+ _MC88xxx(0xf4006000, "addu", "d,1,2")
+ _MC88xxx(0x60000000, "addu", "d,1,I")
+ _MC88xxx(0xf4006200, "addu.ci", "d,1,2")
+ _MC88xxx(0xf4006300, "addu.cio", "d,1,2")
+ _MC88xxx(0xf4006100, "addu.co", "d,1,2")
+ _MC88xxx(0xf4004000, "and", "d,1,2")
+ _MC88xxx(0x40000000, "and", "d,1,I")
+ _MC88xxx(0xf4004400, "and.c", "d,1,2")
+ _MC88xxx(0x44000000, "and.u", "d,1,I")
+ _MC88xxx(0xd0000000, "bb0", "B,1,p")
+ _MC88xxx(0xd4000000, "bb0.n", "B,1,p")
+ _MC88xxx(0xd8000000, "bb1", "B,1,p")
+ _MC88xxx(0xdc000000, "bb1.n", "B,1,p")
+ _MC88xxx(0xe8000000, "bcnd", "M,1,p")
+ _MC88xxx(0xec000000, "bcnd.n", "M,1,p")
+ _MC88xxx(0xc0000000, "br", "P")
+ _MC88xxx(0xc4000000, "br.n", "P")
+ _MC88xxx(0xc8000000, "bsr", "P")
+ _MC88xxx(0xcc000000, "bsr.n", "P")
+ _MC88xxx(0xf4008000, "clr", "d,1,2")
+ _MC88xxx(0xf0008000, "clr", "d,1,b")
+ _MC88xxx(0xf4007c00, "cmp", "d,1,2")
+ _MC88xxx(0x7c000000, "cmp", "d,1,I")
+ _MC88xxx(0xf4007800, "div", "d,1,2")
+ _MC88xxx(0x78000000, "div", "d,1,I")
+ _MC88xxx(0xf4007800, "divs", "d,1,2")
+ _MC88xxx(0x78000000, "divs", "d,1,I")
+ _MC88xxx(0xf4006800, "divu", "d,1,2")
+ _MC88xxx(0x68000000, "divu", "d,1,I")
+ _MC88xxx(0xf4009000, "ext", "d,1,2")
+ _MC88xxx(0xf0009000, "ext", "d,1,b")
+ _MC88xxx(0xf4009800, "extu", "d,1,2")
+ _MC88xxx(0xf0009800, "extu", "d,1,b")
+ _MC88xxx(0x84002800, "fadd.sss", "d,1,2")
+ _MC88xxx(0x84002880, "fadd.ssd", "d,1,2")
+ _MC88xxx(0x84002a00, "fadd.sds", "d,1,2")
+ _MC88xxx(0x84002a80, "fadd.sdd", "d,1,2")
+ _MC88xxx(0x84002820, "fadd.dss", "d,1,2")
+ _MC88xxx(0x840028a0, "fadd.dsd", "d,1,2")
+ _MC88xxx(0x84002a20, "fadd.dds", "d,1,2")
+ _MC88xxx(0x84002aa0, "fadd.ddd", "d,1,2")
+ _MC88xxx(0x84003a80, "fcmp.sdd", "d,1,2")
+ _MC88xxx(0x84003a00, "fcmp.sds", "d,1,2")
+ _MC88xxx(0x84003880, "fcmp.ssd", "d,1,2")
+ _MC88xxx(0x84003800, "fcmp.sss", "d,1,2")
+ _MC88xxx(0x84007000, "fdiv.sss", "d,1,2")
+ _MC88xxx(0x84007080, "fdiv.ssd", "d,1,2")
+ _MC88xxx(0x84007200, "fdiv.sds", "d,1,2")
+ _MC88xxx(0x84007280, "fdiv.sdd", "d,1,2")
+ _MC88xxx(0x84007020, "fdiv.dss", "d,1,2")
+ _MC88xxx(0x840070a0, "fdiv.dsd", "d,1,2")
+ _MC88xxx(0x84007220, "fdiv.dds", "d,1,2")
+ _MC88xxx(0x840072a0, "fdiv.ddd", "d,1,2")
+ _MC88xxx(0xf400ec00, "ff0", "d,2")
+ _MC88xxx(0xf400e800, "ff1", "d,2")
+ _MC88xxx(0x80004800, "fldcr", "d,f")
+ _MC88xxx(0x84002020, "flt.ds", "d,2")
+ _MC88xxx(0x84002000, "flt.ss", "d,2")
+ _MC88xxx(0x84000000, "fmul.sss", "d,1,2")
+ _MC88xxx(0x84000080, "fmul.ssd", "d,1,2")
+ _MC88xxx(0x84000200, "fmul.sds", "d,1,2")
+ _MC88xxx(0x84000280, "fmul.sdd", "d,1,2")
+ _MC88xxx(0x84000020, "fmul.dss", "d,1,2")
+ _MC88xxx(0x840000a0, "fmul.dsd", "d,1,2")
+ _MC88xxx(0x84000220, "fmul.dds", "d,1,2")
+ _MC88xxx(0x840002a0, "fmul.ddd", "d,1,2")
+ _MC88xxx(0x80008800, "fstcr", "3,f")
+ _MC88xxx(0x84003000, "fsub.sss", "d,1,2")
+ _MC88xxx(0x84003080, "fsub.ssd", "d,1,2")
+ _MC88xxx(0x84003200, "fsub.sds", "d,1,2")
+ _MC88xxx(0x84003280, "fsub.sdd", "d,1,2")
+ _MC88xxx(0x84003020, "fsub.dss", "d,1,2")
+ _MC88xxx(0x840030a0, "fsub.dsd", "d,1,2")
+ _MC88xxx(0x84003220, "fsub.dds", "d,1,2")
+ _MC88xxx(0x840032a0, "fsub.ddd", "d,1,2")
+ _MC88xxx(0x8000c800, "fxcr", "d,3,f")
+ _MC88xxx(0x8400fc01, "illop1", "")
+ _MC88xxx(0x8400fc02, "illop2", "")
+ _MC88xxx(0x8400fc03, "illop3", "")
+ _MC88xxx(0x84004880, "int.sd", "d,2")
+ _MC88xxx(0x84004800, "int.ss", "d,2")
+ _MC88xxx(0xf400c000, "jmp", "2")
+ _MC88xxx(0xf400c400, "jmp.n", "2")
+ _MC88xxx(0xf400c800, "jsr", "2")
+ _MC88xxx(0xf400cc00, "jsr.n", "2")
+ _MC88xxx(0xf4001400, "ld", "d,1,2")
+ _MC88xxx(0xf4001600, "ld", "d,1[2]")
+ _MC88xxx(0x14000000, "ld", "d,1,I")
+ _MC88xxx(0xf4001e00, "ld.b", "d,1[2]")
+ _MC88xxx(0xf4001c00, "ld.b", "d,1,2")
+ _MC88xxx(0x1c000000, "ld.b", "d,1,I")
+ _MC88xxx(0xf4001d00, "ld.b.usr", "d,1,2")
+ _MC88xxx(0xf4001f00, "ld.b.usr", "d,1[2]")
+ _MC88xxx(0xf4000e00, "ld.bu", "d,1[2]")
+ _MC88xxx(0xf4000c00, "ld.bu", "d,1,2")
+ _MC88xxx(0x0c000000, "ld.bu", "d,1,I")
+ _MC88xxx(0xf4000d00, "ld.bu.usr", "d,1,2")
+ _MC88xxx(0xf4000f00, "ld.bu.usr", "d,1[2]")
+ _MC88xxx(0xf4001200, "ld.d", "d,1[2]")
+ _MC88xxx(0xf4001000, "ld.d", "d,1,2")
+ _MC88xxx(0x10000000, "ld.d", "d,1,I")
+ _MC88xxx(0xf4001100, "ld.d.usr", "d,1,2")
+ _MC88xxx(0xf4001300, "ld.d.usr", "d,1[2]")
+ _MC88xxx(0xf4001a00, "ld.h", "d,1[2]")
+ _MC88xxx(0xf4001800, "ld.h", "d,1,2")
+ _MC88xxx(0x18000000, "ld.h", "d,1,I")
+ _MC88xxx(0xf4001900, "ld.h.usr", "d,1,2")
+ _MC88xxx(0xf4001b00, "ld.h.usr", "d,1[2]")
+ _MC88xxx(0xf4000a00, "ld.hu", "d,1[2]")
+ _MC88xxx(0xf4000800, "ld.hu", "d,1,2")
+ _MC88xxx(0x08000000, "ld.hu", "d,1,I")
+ _MC88xxx(0xf4000900, "ld.hu.usr", "d,1,2")
+ _MC88xxx(0xf4000b00, "ld.hu.usr", "d,1[2]")
+ _MC88xxx(0xf4001500, "ld.usr", "d,1,2")
+ _MC88xxx(0xf4001700, "ld.usr", "d,1[2]")
+ _MC88xxx(0xf4003600, "lda", "d,1[2]")
+ _MC88xxx(0xf4006000, "lda", "?d,1,2") /* Output addu */
+ _MC88xxx(0x60000000, "lda", "?d,1,I") /* Output addu */
+ _MC88xxx(0xf4006000, "lda.b", "?d,1[2]") /* Output addu */
+ _MC88xxx(0xf4006000, "lda.b", "?d,1,2") /* Output addu */
+ _MC88xxx(0x60000000, "lda.b", "?d,1,I") /* Output addu */
+ _MC88xxx(0xf4003200, "lda.d", "d,1[2]")
+ _MC88xxx(0xf4006000, "lda.d", "?d,1,2") /* Output addu */
+ _MC88xxx(0x60000000, "lda.d", "?d,1,I") /* Output addu */
+ _MC88xxx(0xf4003a00, "lda.h", "d,1[2]")
+ _MC88xxx(0xf4006000, "lda.h", "?d,1,2") /* Output addu */
+ _MC88xxx(0x60000000, "lda.h", "?d,1,I") /* Output addu */
+ _MC88xxx(0x80004000, "ldcr", "d,c")
+ _MC88xxx(0xf400a000, "mak", "d,1,2")
+ _MC88xxx(0xf000a000, "mak", "d,1,b")
+ _MC88xxx(0x48000000, "mask", "d,1,I")
+ _MC88xxx(0x4c000000, "mask.u", "d,1,I")
+ _MC88xxx(0xf4006c00, "mul", "d,1,2")
+ _MC88xxx(0x6c000000, "mul", "d,1,I")
+ _MC88xxx(0xf4006c00, "mulu", "d,1,2") /* synonym for mul */
+ _MC88xxx(0x6c000000, "mulu", "d,1,I") /* synonym for mul */
+ _MC88xxx(0x84005080, "nint.sd", "d,2")
+ _MC88xxx(0x84005000, "nint.ss", "d,2")
+ _MC88xxx(0xf4005800, "or", "d,1,2")
+ _MC88xxx(0x58000000, "or", "d,1,I")
+ _MC88xxx(0xf4005c00, "or.c", "d,1,2")
+ _MC88xxx(0x5c000000, "or.u", "d,1,I")
+ _MC88xxx(0xf000a800, "rot", "d,1,b")
+ _MC88xxx(0xf400a800, "rot", "d,1,2")
+ _MC88xxx(0xf400fc00, "rte", "")
+ _MC88xxx(0xf4008800, "set", "d,1,2")
+ _MC88xxx(0xf0008800, "set", "d,1,b")
+ _MC88xxx(0xf4002600, "st", "d,1[2]")
+ _MC88xxx(0xf4002400, "st", "d,1,2")
+ _MC88xxx(0x24000000, "st", "d,1,I")
+ _MC88xxx(0xf4002e00, "st.b", "d,1[2]")
+ _MC88xxx(0xf4002c00, "st.b", "d,1,2")
+ _MC88xxx(0x2c000000, "st.b", "d,1,I")
+ _MC88xxx(0xf4002d00, "st.b.usr", "d,1,2")
+ _MC88xxx(0xf4002f00, "st.b.usr", "d,1[2]")
+ _MC88xxx(0xf4002200, "st.d", "d,1[2]")
+ _MC88xxx(0xf4002000, "st.d", "d,1,2")
+ _MC88xxx(0x20000000, "st.d", "d,1,I")
+ _MC88xxx(0xf4002100, "st.d.usr", "d,1,2")
+ _MC88xxx(0xf4002300, "st.d.usr", "d,1[2]")
+ _MC88xxx(0xf4002a00, "st.h", "d,1[2]")
+ _MC88xxx(0xf4002800, "st.h", "d,1,2")
+ _MC88xxx(0x28000000, "st.h", "d,1,I")
+ _MC88xxx(0xf4002900, "st.h.usr", "d,1,2")
+ _MC88xxx(0xf4002b00, "st.h.usr", "d,1[2]")
+ _MC88xxx(0xf4002500, "st.usr", "d,1,2")
+ _MC88xxx(0xf4002700, "st.usr", "d,1[2]")
+ _MC88xxx(0x80008000, "stcr", "3,c")
+ _MC88xxx(0xf4007400, "sub", "d,1,2")
+ _MC88xxx(0x74000000, "sub", "d,1,I")
+ _MC88xxx(0xf4007600, "sub.ci", "d,1,2")
+ _MC88xxx(0xf4007700, "sub.cio", "d,1,2")
+ _MC88xxx(0xf4007500, "sub.co", "d,1,2")
+ _MC88xxx(0xf4006400, "subu", "d,1,2")
+ _MC88xxx(0x64000000, "subu", "d,1,I")
+ _MC88xxx(0xf4006600, "subu.ci", "d,1,2")
+ _MC88xxx(0xf4006700, "subu.cio", "d,1,2")
+ _MC88xxx(0xf4006500, "subu.co", "d,1,2")
+ _MC88xxx(0xf000d000, "tb0", "B,1,V")
+ _MC88xxx(0xf000d800, "tb1", "B,1,V")
+ _MC88xxx(0xf400f800, "tbnd", "1,2")
+ _MC88xxx(0xf8000000, "tbnd", "1,I")
+ _MC88xxx(0xf000e800, "tcnd", "M,1,V")
+ _MC88xxx(0x84005880, "trnc.sd", "d,2")
+ _MC88xxx(0x84005800, "trnc.ss", "d,2")
+ _MC88xxx(0x8000c000, "xcr", "d,1,c")
+ _MC88xxx(0xf4000600, "xmem", "d,1[2]")
+ _MC88xxx(0xf4000400, "xmem", "d,1,2")
+ _MC88100(0x04000000, "xmem", "?d,1,I")
+ _MC88xxx(0xf4000200, "xmem.bu", "d,1[2]")
+ _MC88xxx(0xf4000000, "xmem.bu", "d,1,2")
+ _MC88100(0x00000000, "xmem.bu", "?d,1,I")
+ _MC88xxx(0xf4000300, "xmem.bu.usr", "d,1[2]")
+ _MC88xxx(0xf4000100, "xmem.bu.usr", "d,1,2")
+ _MC88100(0x00000100, "xmem.bu.usr", "?d,1,I")
+ _MC88xxx(0xf4000700, "xmem.usr", "d,1[2]")
+ _MC88xxx(0xf4000500, "xmem.usr", "d,1,2")
+ _MC88100(0x04000100, "xmem.usr", "?d,1,I")
+ _MC88xxx(0xf4005000, "xor", "d,1,2")
+ _MC88xxx(0x50000000, "xor", "d,1,I")
+ _MC88xxx(0xf4005400, "xor.c", "d,1,2")
+ _MC88xxx(0x54000000, "xor.u", "d,1,I")
+ _MC88xxx(0x00000000, "", 0)
+};
+
+#define NUMOPCODES ((sizeof m88k_opcodes)/(sizeof m88k_opcodes[0]))
--- /dev/null
+/* m88k.c -- Assembler for the Motorola 88000
+ Contributed by Devon Bowen of Buffalo University
+ and Torbjorn Granlund of the Swedish Institute of Computer Science.
+ Copyright (C) 1989, 1990, 1991 Free Software Foundation, Inc.
+
+This file is part of GAS, the GNU Assembler.
+
+GAS is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GAS is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GAS; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <ctype.h>
+#include "m88k-opcode.h"
+#include "as.h"
+#include "frags.h"
+#include "struc-symbol.h"
+#include "flonum.h"
+#include "expr.h"
+#include "hash.h"
+#include "md.h"
+#include "m88k.h"
+#include "write.h"
+#include "read.h"
+/*
+#include "obstack.h"
+#include "struc-symbol.h"
+*/
+#include "symbols.h"
+
+char *getval ();
+char *get_reg ();
+char *get_imm16 ();
+char *get_bf ();
+char *get_pcr ();
+char *get_cmp ();
+char *get_cnd ();
+char *get_cr ();
+char *get_fcr ();
+char *get_vec9 ();
+
+struct field_val_assoc
+{
+ char *name;
+ unsigned val;
+};
+
+struct field_val_assoc cr_regs[] =
+{
+ {"PID", 0},
+ {"PSR", 1},
+ {"EPSR", 2},
+ {"SSBR", 3},
+ {"SXIP", 4},
+ {"SNIP", 5},
+ {"SFIP", 6},
+ {"VBR", 7},
+ {"DMT0", 8},
+ {"DMD0", 9},
+ {"DMA0", 10},
+ {"DMT1", 11},
+ {"DMD1", 12},
+ {"DMA1", 13},
+ {"DMT2", 14},
+ {"DMD2", 15},
+ {"DMA2", 16},
+ {"SR0", 17},
+ {"SR1", 18},
+ {"SR2", 19},
+ {"SR3", 20},
+
+ {NULL, 0},
+};
+
+struct field_val_assoc fcr_regs[] =
+{
+ {"FPECR", 0},
+ {"FPHS1", 1},
+ {"FPLS1", 2},
+ {"FPHS2", 3},
+ {"FPLS2", 4},
+ {"FPPT", 5},
+ {"FPRH", 6},
+ {"FPRL", 7},
+ {"FPIT", 8},
+
+ {"FPSR", 62},
+ {"FPCR", 63},
+
+ {NULL, 0},
+};
+
+struct field_val_assoc cmpslot[] =
+{
+/* Integer Floating point */
+ {"nc", 0},
+ {"cp", 1},
+ {"eq", 2},
+ {"ne", 3},
+ {"gt", 4},
+ {"le", 5},
+ {"lt", 6},
+ {"ge", 7},
+ {"hi", 8}, {"ou", 8},
+ {"ls", 9}, {"ib", 9},
+ {"lo", 10}, {"in", 10},
+ {"hs", 11}, {"ob", 11},
+
+ {NULL, 0},
+};
+
+struct field_val_assoc cndmsk[] =
+{
+ {"gt0", 1},
+ {"eq0", 2},
+ {"ge0", 3},
+ {"lt0", 12},
+ {"ne0", 13},
+ {"le0", 14},
+
+ {NULL, 0},
+};
+
+struct m88k_insn
+{
+ unsigned long opcode;
+ expressionS exp;
+ enum reloc_type reloc;
+};
+
+extern char *myname;
+static struct hash_control *op_hash = NULL;
+
+/* These bits should be turned off in the first address of every segment */
+int md_seg_align = 7;
+
+/* This is the number to put at the beginning of the a.out file */
+long omagic = OMAGIC;
+
+/* These chars start a comment anywhere in a source file (except inside
+ another comment */
+char comment_chars[] = ";";
+
+/* These chars only start a comment at the beginning of a line. */
+char line_comment_chars[] = "#";
+
+/* Chars that can be used to separate mant from exp in floating point nums */
+char EXP_CHARS[] = "eE";
+
+/* Chars that mean this number is a floating point constant */
+/* as in 0f123.456 */
+/* or 0H1.234E-12 (see exp chars above) */
+char FLT_CHARS[] = "dDfF";
+
+extern void float_cons (), cons (), s_globl (), s_line (),
+ s_space (), s_set (), stringer (), s_lcomm ();
+static void s_file ();
+static void s_bss ();
+
+const pseudo_typeS md_pseudo_table[] =
+{
+ {"def", s_set, 0},
+ {"dfloat", float_cons, 'd'},
+ {"ffloat", float_cons, 'f'},
+ {"global", s_globl, 0},
+ {"half", cons, 2 },
+ {"bss", s_bss, 0},
+ {"ln", s_line, 0},
+ {"string", stringer, 0},
+ {"word", cons, 4 },
+ {"zero", s_space, 0},
+ {0}
+};
+
+void
+md_begin ()
+{
+ char *retval = NULL;
+ unsigned int i = 0;
+
+ /* initialize hash table */
+
+ op_hash = hash_new ();
+ if (op_hash == NULL)
+ as_fatal ("Could not initialize hash table");
+
+ /* loop until you see the end of the list */
+
+ while (*m88k_opcodes[i].name)
+ {
+ char *name = m88k_opcodes[i].name;
+
+ /* hash each mnemonic and record its position */
+
+ retval = hash_insert (op_hash, name, &m88k_opcodes[i]);
+
+ if (retval != NULL && *retval != '\0')
+ as_fatal ("Can't hash instruction '%s':%s",
+ m88k_opcodes[i].name, retval);
+
+ /* skip to next unique mnemonic or end of list */
+
+ for (i++; !strcmp (m88k_opcodes[i].name, name); i++)
+ ;
+ }
+}
+
+void
+md_parse_option (argP, cntP, vecP)
+ char **argP;
+ int *cntP;
+ char ***vecP;
+{
+ as_warn ("unknown option: -%s", *argP);
+}
+
+void
+md_assemble (op)
+ char *op;
+{
+ char *param, *thisfrag;
+ struct m88k_opcode *format;
+ struct m88k_insn insn;
+
+ assert (op);
+
+ /* skip over instruction to find parameters */
+
+ for (param = op; *param != 0 && !isspace (*param); param++)
+ ;
+ if (*param != 0)
+ *param++ = 0;
+
+ /* try to find the instruction in the hash table */
+
+ if ((format = (struct m88k_opcode *) hash_find (op_hash, op)) == NULL)
+ {
+ as_fatal ("Invalid mnemonic '%s'", op);
+ return;
+ }
+
+ /* try parsing this instruction into insn */
+
+ insn.exp.X_add_symbol = 0;
+ insn.exp.X_subtract_symbol = 0;
+ insn.exp.X_add_number = 0;
+ insn.exp.X_seg = 0;
+ insn.reloc = NO_RELOC;
+
+ while (!calcop (format, param, &insn))
+ {
+ /* if it doesn't parse try the next instruction */
+
+ if (!strcmp (format[0].name, format[1].name))
+ format++;
+ else
+ {
+ as_fatal ("Parameter syntax error");
+ return;
+ }
+ }
+
+ /* grow the current frag and plop in the opcode */
+
+ thisfrag = frag_more (4);
+ md_number_to_chars (thisfrag, insn.opcode, 4);
+
+ /* if this instruction requires labels mark it for later */
+
+ switch (insn.reloc)
+ {
+ case NO_RELOC:
+ break;
+
+ case RELOC_LO16:
+ case RELOC_HI16:
+ fix_new (frag_now,
+ thisfrag - frag_now->fr_literal + 2,
+ 2,
+ insn.exp.X_add_symbol,
+ insn.exp.X_subtract_symbol,
+ insn.exp.X_add_number,
+ 0,
+ insn.reloc);
+ break;
+
+ case RELOC_IW16:
+ fix_new (frag_now,
+ thisfrag - frag_now->fr_literal,
+ 4,
+ insn.exp.X_add_symbol,
+ insn.exp.X_subtract_symbol,
+ insn.exp.X_add_number,
+ 0,
+ insn.reloc);
+ break;
+
+ case RELOC_PC16:
+ fix_new (frag_now,
+ thisfrag - frag_now->fr_literal + 2,
+ 2,
+ insn.exp.X_add_symbol,
+ insn.exp.X_subtract_symbol,
+ insn.exp.X_add_number,
+ 1,
+ insn.reloc);
+ break;
+
+ case RELOC_PC26:
+ fix_new (frag_now,
+ thisfrag - frag_now->fr_literal,
+ 4,
+ insn.exp.X_add_symbol,
+ insn.exp.X_subtract_symbol,
+ insn.exp.X_add_number,
+ 1,
+ insn.reloc);
+ break;
+
+ default:
+ as_fatal ("Unknown relocation type");
+ break;
+ }
+}
+
+int
+calcop (format, param, insn)
+ struct m88k_opcode *format;
+ char *param;
+ struct m88k_insn *insn;
+{
+ char *fmt = format->op_spec;
+ int f;
+ unsigned val;
+ unsigned opcode;
+
+ insn->opcode = format->opcode;
+ opcode = 0;
+
+ for (;;)
+ {
+ if (param == 0)
+ return 0;
+ f = *fmt++;
+ switch (f)
+ {
+ case 0:
+ insn->opcode |= opcode;
+ return *param == 0;
+
+ default:
+ if (f != *param++)
+ return 0;
+ break;
+
+ case 'd':
+ param = get_reg (param, &val);
+ opcode |= val << 21;
+ break;
+
+ case '1':
+ param = get_reg (param, &val);
+ opcode |= val << 16;
+ break;
+
+ case '2':
+ param = get_reg (param, &val);
+ opcode |= val;
+ break;
+
+ case '3':
+ param = get_reg (param, &val);
+ opcode |= (val << 16) | val;
+ break;
+
+ case 'I':
+ param = get_imm16 (param, insn);
+ break;
+
+ case 'b':
+ param = get_bf (param, &val);
+ opcode |= val;
+ break;
+
+ case 'p':
+ param = get_pcr (param, insn, RELOC_PC16);
+ break;
+
+ case 'P':
+ param = get_pcr (param, insn, RELOC_PC26);
+ break;
+
+ case 'B':
+ param = get_cmp (param, &val);
+ opcode |= val;
+ break;
+
+ case 'M':
+ param = get_cnd (param, &val);
+ opcode |= val;
+ break;
+
+ case 'c':
+ param = get_cr (param, &val);
+ opcode |= val << 5;
+ break;
+
+ case 'f':
+ param = get_fcr (param, &val);
+ opcode |= val << 5;
+ break;
+
+ case 'V':
+ param = get_vec9 (param, &val);
+ opcode |= val;
+ break;
+
+ case '?':
+ /* Having this here repeats the warning somtimes.
+ But can't we stand that? */
+ as_warn ("Use of obsolete instruction");
+ break;
+ }
+ }
+}
+
+char *
+match_name (param, assoc_tab, valp)
+ char *param;
+ struct field_val_assoc *assoc_tab;
+ unsigned *valp;
+{
+ int i;
+ char *name;
+ int name_len;
+
+ for (i = 0;; i++)
+ {
+ name = assoc_tab[i].name;
+ if (name == NULL)
+ return NULL;
+ name_len = strlen (name);
+ if (!strncmp (param, name, name_len))
+ {
+ *valp = assoc_tab[i].val;
+ return param + name_len;
+ }
+ }
+}
+
+char *
+get_reg (param, regnop)
+ char *param;
+ unsigned *regnop;
+{
+ unsigned c;
+ unsigned regno;
+
+ c = *param++;
+ if (c == 'r')
+ {
+ regno = *param++ - '0';
+ if (regno < 10)
+ {
+ if (regno == 0)
+ {
+ *regnop = 0;
+ return param;
+ }
+ c = *param - '0';
+ if (c < 10)
+ {
+ regno = regno * 10 + c;
+ if (c < 32)
+ {
+ *regnop = regno;
+ return param + 1;
+ }
+ }
+ else
+ {
+ *regnop = regno;
+ return param;
+ }
+ }
+ return NULL;
+ }
+ else if (c == 's' && param[0] == 'p')
+ {
+ *regnop = 31;
+ return param + 1;
+ }
+
+ return 0;
+}
+
+char *
+get_imm16 (param, insn)
+ char *param;
+ struct m88k_insn *insn;
+{
+ enum reloc_type reloc = NO_RELOC;
+ unsigned int val;
+ segT seg;
+ char *save_ptr;
+
+ if (!strncmp (param, "hi16", 4) && !isalnum (param[4]))
+ {
+ reloc = RELOC_HI16;
+ param += 4;
+ }
+ else if (!strncmp (param, "lo16", 4) && !isalnum (param[4]))
+ {
+ reloc = RELOC_LO16;
+ param += 4;
+ }
+ else if (!strncmp (param, "iw16", 4) && !isalnum (param[4]))
+ {
+ reloc = RELOC_IW16;
+ param += 4;
+ }
+
+ save_ptr = input_line_pointer;
+ input_line_pointer = param;
+ seg = expression (&insn->exp);
+ param = input_line_pointer;
+ input_line_pointer = save_ptr;
+
+ val = insn->exp.X_add_number;
+
+ if (seg == SEG_ABSOLUTE)
+ {
+ /* Insert the value now, and reset reloc to NO_RELOC. */
+ if (reloc == NO_RELOC)
+ {
+ /* Warn about too big expressions if not surrounded by xx16. */
+ if (val > 0xffff)
+ as_warn ("Expression truncated to 16 bits");
+ }
+
+ if (reloc == RELOC_HI16)
+ val >>= 16;
+
+ insn->opcode |= val & 0xffff;
+ reloc = NO_RELOC;
+ }
+ else if (reloc == NO_RELOC)
+ /* We accept a symbol even without lo16, hi16, etc, and assume
+ lo16 was intended. */
+ reloc = RELOC_LO16;
+
+ insn->reloc = reloc;
+
+ return param;
+}
+
+char *
+get_pcr (param, insn, reloc)
+ char *param;
+ struct m88k_insn *insn;
+ enum reloc_type reloc;
+{
+ char *saveptr, *saveparam;
+ segT seg;
+
+ saveptr = input_line_pointer;
+ input_line_pointer = param;
+
+ seg = expression (&insn->exp);
+
+ saveparam = input_line_pointer;
+ input_line_pointer = saveptr;
+
+ /* Botch: We should relocate now if SEG_ABSOLUTE. */
+ insn->reloc = reloc;
+
+ return saveparam;
+}
+
+char *
+get_cmp (param, valp)
+ char *param;
+ unsigned *valp;
+{
+ unsigned int val;
+ char *save_ptr;
+
+ save_ptr = param;
+
+ param = match_name (param, cmpslot, valp);
+ val = *valp;
+
+ if (param == NULL)
+ {
+ param = save_ptr;
+
+ save_ptr = input_line_pointer;
+ input_line_pointer = param;
+ val = get_absolute_expression ();
+ param = input_line_pointer;
+ input_line_pointer = save_ptr;
+
+ if (val >= 32)
+ {
+ as_warn ("Expression truncated to 5 bits");
+ val %= 32;
+ }
+ }
+
+ *valp = val << 21;
+ return param;
+}
+
+char *
+get_cnd (param, valp)
+ char *param;
+ unsigned *valp;
+{
+ unsigned int val;
+
+ if (isdigit (*param))
+ {
+ param = getval (param, &val);
+
+ if (val >= 32)
+ {
+ as_warn ("Expression truncated to 5 bits");
+ val %= 32;
+ }
+ }
+ else
+ {
+ if (isupper (*param))
+ *param = tolower (*param);
+
+ if (isupper (param[1]))
+ param[1] = tolower (param[1]);
+
+ param = match_name (param, cndmsk, valp);
+
+ if (param == NULL)
+ return NULL;
+
+ val = *valp;
+ }
+
+ *valp = val << 21;
+ return param;
+}
+
+char *
+get_bf2 (param, bc)
+ char *param;
+ int bc;
+{
+ int depth = 0;
+ int c;
+
+ for (;;)
+ {
+ c = *param;
+ if (c == 0)
+ return param;
+ else if (c == '(')
+ depth++;
+ else if (c == ')')
+ depth--;
+ else if (c == bc && depth <= 0)
+ return param;
+ param++;
+ }
+}
+
+char *
+get_bf_offset_expression (param, offsetp)
+ char *param;
+ unsigned *offsetp;
+{
+ unsigned offset;
+
+ if (isalpha (param[0]))
+ {
+ if (isupper (param[0]))
+ param[0] = tolower (param[0]);
+ if (isupper (param[1]))
+ param[1] = tolower (param[1]);
+
+ param = match_name (param, cmpslot, offsetp);
+
+ return param;
+ }
+ else
+ {
+ input_line_pointer = param;
+ offset = get_absolute_expression ();
+ param = input_line_pointer;
+ }
+
+ *offsetp = offset;
+ return param;
+}
+
+char *
+get_bf (param, valp)
+ char *param;
+ unsigned *valp;
+{
+ unsigned offset = 0;
+ unsigned width = 0;
+ char *xp;
+ char *save_ptr;
+
+ xp = get_bf2 (param, '<');
+
+ save_ptr = input_line_pointer;
+ input_line_pointer = param;
+ if (*xp == 0)
+ {
+ /* We did not find '<'. We have an offset (width implicitly 32). */
+ param = get_bf_offset_expression (param, &offset);
+ if (param == NULL)
+ return NULL;
+ input_line_pointer = save_ptr;
+ }
+ else
+ {
+ *xp++ = 0; /* Overwrite the '<' */
+ param = get_bf2 (xp, '>');
+ if (*param == 0)
+ return NULL;
+ *param++ = 0; /* Overwrite the '>' */
+
+ width = get_absolute_expression ();
+ xp = get_bf_offset_expression (xp, &offset);
+ input_line_pointer = save_ptr;
+
+ if (xp + 1 != param)
+ return NULL;
+ }
+
+ *valp = ((width % 32) << 5) | (offset % 32);
+
+ return param;
+}
+
+char *
+get_cr (param, regnop)
+ char *param;
+ unsigned *regnop;
+{
+ unsigned regno;
+ unsigned c;
+ int i;
+ int name_len;
+
+ if (!strncmp (param, "cr", 2))
+ {
+ param += 2;
+
+ regno = *param++ - '0';
+ if (regno < 10)
+ {
+ if (regno == 0)
+ {
+ *regnop = 0;
+ return param;
+ }
+ c = *param - '0';
+ if (c < 10)
+ {
+ regno = regno * 10 + c;
+ if (c < 64)
+ {
+ *regnop = regno;
+ return param + 1;
+ }
+ }
+ else
+ {
+ *regnop = regno;
+ return param;
+ }
+ }
+ return NULL;
+ }
+
+ param = match_name (param, cr_regs, regnop);
+
+ return param;
+}
+
+char *
+get_fcr (param, regnop)
+ char *param;
+ unsigned *regnop;
+{
+ unsigned regno;
+ unsigned c;
+ int i;
+ int name_len;
+
+ if (!strncmp (param, "fcr", 3))
+ {
+ param += 3;
+
+ regno = *param++ - '0';
+ if (regno < 10)
+ {
+ if (regno == 0)
+ {
+ *regnop = 0;
+ return param;
+ }
+ c = *param - '0';
+ if (c < 10)
+ {
+ regno = regno * 10 + c;
+ if (c < 64)
+ {
+ *regnop = regno;
+ return param + 1;
+ }
+ }
+ else
+ {
+ *regnop = regno;
+ return param;
+ }
+ }
+ return NULL;
+ }
+
+ param = match_name (param, fcr_regs, regnop);
+
+ return param;
+}
+
+char *
+get_vec9 (param, valp)
+ char *param;
+ unsigned *valp;
+{
+ unsigned val;
+ char *save_ptr;
+
+ save_ptr = input_line_pointer;
+ input_line_pointer = param;
+ val = get_absolute_expression ();
+ param = input_line_pointer;
+ input_line_pointer = save_ptr;
+
+ if (val >= 1 << 9)
+ as_warn ("Expression truncated to 9 bits");
+
+ *valp = val % (1 << 9);
+
+ return param;
+}
+
+#define hexval(z) \
+ (isdigit (z) ? (z) - '0' : \
+ islower (z) ? (z) - 'a' + 10 : \
+ isupper (z) ? (z) - 'A' + 10 : -1)
+
+char *
+getval (param, valp)
+ char *param;
+ unsigned int *valp;
+{
+ unsigned int val = 0;
+ unsigned int c;
+
+ c = *param++;
+ if (c == '0')
+ {
+ c = *param++;
+ if (c == 'x' || c == 'X')
+ {
+ c = *param++;
+ c = hexval (c);
+ while (c < 16)
+ {
+ val = val * 16 + c;
+ c = *param++;
+ c = hexval (c);
+ }
+ }
+ else
+ {
+ c -= '0';
+ while (c < 8)
+ {
+ val = val * 8 + c;
+ c = *param++ - '0';
+ }
+ }
+ }
+ else
+ {
+ c -= '0';
+ while (c < 10)
+ {
+ val = val * 10 + c;
+ c = *param++ - '0';
+ }
+ }
+
+ *valp = val;
+ return param - 1;
+}
+
+void
+md_number_to_chars (buf, val, nbytes)
+char *buf;
+int val;
+int nbytes;
+{
+ switch (nbytes)
+ {
+ case 4:
+ *buf++ = val >> 24;
+ *buf++ = val >> 16;
+ case 2:
+ *buf++ = val >> 8;
+ case 1:
+ *buf = val;
+ break;
+
+ default:
+ abort ();
+ }
+}
+
+void
+md_number_to_imm (buf, val, nbytes, fixP, seg_type)
+unsigned char *buf;
+unsigned int val;
+int nbytes;
+fixS *fixP;
+int seg_type;
+{
+ if (seg_type != N_TEXT || fixP->fx_r_type == NO_RELOC)
+ {
+ switch (nbytes)
+ {
+ case 4:
+ *buf++ = val >> 24;
+ *buf++ = val >> 16;
+ case 2:
+ *buf++ = val >> 8;
+ case 1:
+ *buf = val;
+ break;
+
+ default:
+ abort ();
+ }
+ return;
+ }
+
+ switch (fixP->fx_r_type)
+ {
+ case RELOC_IW16:
+ buf[2] = val >> 8;
+ buf[3] = val;
+ break;
+
+ case RELOC_LO16:
+ buf[0] = val >> 8;
+ buf[1] = val;
+ break;
+
+ case RELOC_HI16:
+ buf[0] = val >> 24;
+ buf[1] = val >> 16;
+ break;
+
+ case RELOC_PC16:
+ val += 4;
+ buf[0] = val >> 10;
+ buf[1] = val >> 2;
+ break;
+
+ case RELOC_PC26:
+ val += 4;
+ buf[0] |= (val >> 26) & 0x03;
+ buf[1] = val >> 18;
+ buf[2] = val >> 10;
+ buf[3] = val >> 2;
+ break;
+
+ case RELOC_32:
+ buf[0] = val >> 24;
+ buf[1] = val >> 16;
+ buf[2] = val >> 8;
+ buf[3] = val;
+ break;
+
+ default:
+ as_fatal ("Bad relocation type");
+ break;
+ }
+}
+
+void
+md_number_to_disp (buf, val, nbytes)
+char *buf;
+int val;
+int nbytes;
+{
+ as_fatal ("md_number_to_disp not defined");
+ md_number_to_chars (buf, val, nbytes);
+}
+
+void
+md_number_to_field (buf, val, nbytes)
+char *buf;
+int val;
+int nbytes;
+{
+ as_fatal ("md_number_to_field not defined");
+ md_number_to_chars (buf, val, nbytes);
+}
+
+#define MAX_LITTLENUMS 6
+
+/* Turn a string in input_line_pointer into a floating point constant of type
+ type, and store the appropriate bytes in *litP. The number of LITTLENUMS
+ emitted is stored in *sizeP . An error message is returned, or NULL on OK.
+ */
+char *
+md_atof (type, litP, sizeP)
+ char type;
+ char *litP;
+ int *sizeP;
+{
+ int prec;
+ LITTLENUM_TYPE words[MAX_LITTLENUMS];
+ LITTLENUM_TYPE *wordP;
+ char *t;
+ char *atof_ieee ();
+
+ switch (type)
+ {
+ case 'f':
+ case 'F':
+ case 's':
+ case 'S':
+ prec = 2;
+ break;
+
+ case 'd':
+ case 'D':
+ case 'r':
+ case 'R':
+ prec = 4;
+ break;
+
+ case 'x':
+ case 'X':
+ prec = 6;
+ break;
+
+ case 'p':
+ case 'P':
+ prec = 6;
+ break;
+
+ default:
+ *sizeP=0;
+ return "Bad call to MD_ATOF()";
+ }
+ t=atof_ieee (input_line_pointer, type, words);
+ if (t)
+ input_line_pointer=t;
+
+ *sizeP=prec * sizeof (LITTLENUM_TYPE);
+ for (wordP=words;prec--;)
+ {
+ md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE));
+ litP+=sizeof (LITTLENUM_TYPE);
+ }
+ return ""; /* Someone should teach Dean about null pointers */
+}
+
+int md_short_jump_size = 4;
+
+void
+md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
+ char *ptr;
+ long from_addr, to_addr;
+ fragS *frag;
+ symbolS *to_symbol;
+{
+ ptr[0] = 0xc0; ptr[1] = 0x00; ptr[2] = 0x00; ptr[3] = 0x00;
+ fix_new (frag,
+ ptr - frag->fr_literal,
+ 4,
+ to_symbol,
+ (symbolS *) 0,
+ (long int) 0,
+ 0,
+ RELOC_PC26); /* Botch: Shouldn't this be RELOC_PC16? */
+}
+
+int md_long_jump_size = 4;
+
+void
+md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
+ char *ptr;
+ long from_addr, to_addr;
+ fragS *frag;
+ symbolS *to_symbol;
+{
+ ptr[0] = 0xc0; ptr[1] = 0x00; ptr[2] = 0x00; ptr[3] = 0x00;
+ fix_new (frag,
+ ptr - frag->fr_literal,
+ 4,
+ to_symbol,
+ (symbolS *) 0,
+ (long int) 0,
+ 0,
+ RELOC_PC26);
+}
+
+int
+md_estimate_size_before_relax (fragP, segment_type)
+ fragS *fragP;
+ int segment_type;
+{
+ as_fatal ("Relaxation should never occur");
+}
+
+const relax_typeS md_relax_table[] = {0};
+
+void
+md_convert_frag (fragP)
+ fragS *fragP;
+{
+ as_fatal ("Relaxation should never occur");
+}
+
+void
+md_end ()
+{
+}
+
+/*
+ * Risc relocations are completely different, so it needs
+ * this machine dependent routine to emit them.
+ */
+void
+emit_relocations (fixP, segment_address_in_file)
+ fixS *fixP;
+ relax_addressT segment_address_in_file;
+{
+ struct reloc_info_m88k ri;
+ symbolS *symbolP;
+ extern char *next_object_file_charP;
+
+ bzero ((char *) &ri, sizeof (ri));
+ for (; fixP; fixP = fixP->fx_next) {
+
+ if (fixP->fx_r_type >= NO_RELOC) {
+ fprintf (stderr, "fixP->fx_r_type = %d\n", fixP->fx_r_type);
+ abort ();
+ }
+
+ if ((symbolP = fixP->fx_addsy) != NULL) {
+ ri.r_address = fixP->fx_frag->fr_address +
+ fixP->fx_where - segment_address_in_file;
+ if ((symbolP->sy_type & N_TYPE) == N_UNDF) {
+ ri.r_extern = 1;
+ ri.r_symbolnum = symbolP->sy_number;
+ } else {
+ ri.r_extern = 0;
+ ri.r_symbolnum = symbolP->sy_type & N_TYPE;
+ }
+ if (symbolP && symbolP->sy_frag) {
+ ri.r_addend = symbolP->sy_frag->fr_address;
+ }
+ ri.r_type = fixP->fx_r_type;
+ if (fixP->fx_pcrel) {
+/* ri.r_addend -= fixP->fx_where; */
+ ri.r_addend -= ri.r_address;
+ } else {
+ ri.r_addend = fixP->fx_addnumber;
+ }
+
+/* md_ri_to_chars ((char *) &ri, ri); */
+ append (&next_object_file_charP, (char *)& ri, sizeof (ri));
+ }
+ }
+ return;
+}
+
+static void
+s_bss()
+{
+ char *name;
+ char c;
+ char *p;
+ int temp, bss_align = 1;
+ symbolS *symbolP;
+ extern const char is_end_of_line [256];
+
+ name = input_line_pointer;
+ c = get_symbol_end();
+ p = input_line_pointer;
+ *p = c;
+ SKIP_WHITESPACE();
+ if ( * input_line_pointer != ',' )
+ {
+ as_warn("Expected comma after name");
+ ignore_rest_of_line();
+ return;
+ }
+ input_line_pointer ++;
+ if ((temp = get_absolute_expression()) < 0)
+ {
+ as_warn("BSS length (%d.) <0! Ignored.", temp);
+ ignore_rest_of_line();
+ return;
+ }
+ *p = 0;
+ symbolP = symbol_find_or_make(name);
+ *p = c;
+ if (*input_line_pointer == ',')
+ {
+ input_line_pointer++;
+ bss_align = get_absolute_expression();
+ while (local_bss_counter % bss_align != 0)
+ local_bss_counter++;
+ }
+
+ if (symbolP->sy_other == 0
+ && symbolP->sy_desc == 0
+ && ((symbolP->sy_type == N_BSS
+ && symbolP->sy_value == local_bss_counter)
+ || ((symbolP->sy_type & N_TYPE) == N_UNDF
+ && symbolP->sy_value == 0)))
+ {
+ symbolP->sy_value = local_bss_counter;
+ symbolP->sy_type = N_BSS;
+ symbolP->sy_frag = & bss_address_frag;
+ local_bss_counter += temp;
+ }
+ else
+ {
+ as_warn( "Ignoring attempt to re-define symbol from %d. to %d.",
+ symbolP->sy_value, local_bss_counter );
+ }
+ while (!is_end_of_line[*input_line_pointer])
+ {
+ input_line_pointer++;
+ }
+
+ return;
+}
projects / platform / upstream / binutils.git / commitdiff